Types of decomposition reactions

5 important questions on Types of decomposition reactions

Which three types of decomposition reactions can we distinguish?

-thermal decomposition
-electrolysis
-decomposition by light

What is decomposition by light?

a decomposition reaction using light as a source of energy.

What happened during the electrolysis of a solution of copper bromide, CuBr2?

At one electrode dark brown flocs are formed. The brown colour is caused by the element bromie, Br2 (aq) and the dark brown flocs by the elemental substance copper, Cu (s).
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What was formed during decomposition of by light of Silver choloride?

Ag (s) and Cl2 (g)

What are the reaction products of decompositon of sugar?

Water, a combutible gas and carbon

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